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| author |   Peter Zijlstra <peterz@infradead.org> | 2020-11-26 17:21:30 +0100 |
|---|---|---|
| committer |   Dave Hansen <dave.hansen@linux.intel.com> | 2022-12-15 10:37:27 -0800 |
| commit | 1180e732c985ed3c8866d2fd9e02b619848404a0 (patch) | |
| tree | d7ce6ce20c24e7c941683d8e5816337d9deb6515 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | mm: Rename pmd_read_atomic() (diff) | |
| download | wireguard-linux-1180e732c985ed3c8866d2fd9e02b619848404a0.tar.xz wireguard-linux-1180e732c985ed3c8866d2fd9e02b619848404a0.zip | |
mm/gup: Fix the lockless PMD access
On architectures where the PTE/PMD is larger than the native word size
(i386-PAE for example), READ_ONCE() can do the wrong thing. Use
pmdp_get_lockless() just like we use ptep_get_lockless().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221022114424.906110403%40infradead.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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